Spur of the moment: Gareth Bale is wanted by all of Europe’s top clubs. (Picture: AFP/Getty Images)

West Ham manager Sam Allardyce reckons Tottenham can start the bidding at £50million if they decide to sell prize asset Gareth Bale in the summer.

The Wales international has scored 21 times for Spurs this season as they chase Europa League glory and second straight finish in the Premier League top four.

That impressive return has seen Real Madrid, Barcelona and Bayern Munich all linked with a move for the 23-year-old at the end of the season.

Spurs insist they are in no rush to sell the jewel in their crown but Allardyce, who has to find a way to stop Bale leading Tottenham to victory in tonight’s London derby at Upton Park, said: ‘I suppose the world of football outside of this country might decide [how much he is worth].

‘I would have thought that Tottenham would want nothing less that £40-50million.’

Allardyce does not believe Tottenham are a one-man ream, despite Bale hogging all the headlines, and says the best way to keep the former Southampton winger quiet is to cut off supply lines to him.

He added: ‘The team has got to provide him with the service that he needs to express that ability. If you take [Lionel] Messi out of Barcelona people say when you watch him for Argentina he’s not the same player as at Barcelona.

‘There’s always going to be a good team around you in terms of delivering and supporting the play and the service that he needs and all the other players [at Spurs] are very, very good.’